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Bankov S.E.,RAS Institute of Radio Engineering and Electronics | Skorodumova E.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2015

The problem of the eigenmodes of an infinite 2D array of slot transmission lines operating in the quasi-periodic mode is solved. The boundary-value problem is reduced to a system of integral equations for longitudinal components of the electric current on metal conductors and the magnetic current in slots. The system of integral equation is solved in the static approximation at the first stage and, afterwards, the solution to the electromagnetic problem is found using the Galerkin method. The results of the numerical analysis of the dependences of eigenmode propagation constants on geometric parameters of the structure and phase shifts between the array channels are analyzed. © 2015, Pleiades Publishing, Inc. Source


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2015

On the basis of the modified method of discrete sources two approaches are developed for the solution of the 3D problem of scattering by a plane grating of dielectric revolution bodies. An efficient algorithm of finding the periodic Green’s function of the grating is suggested. The proposed methods are compared. Numerical results for various geometries of the grating elements are obtained. The fulfillment of the energy conservation law is checked. © 2015, Pleiades Publishing, Inc. Source


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Acoustical Physics | Year: 2016

Using the discrete source method, we develop an algorithm for solving the three-dimensional problem of wave scattering by a plane grating consisting of acoustically soft or acoustically stiff bodies. An efficient algorithm is proposed for determining the periodic Green’s function of the grating. Numerical results are obtained for different geometries of the grating elements. The fulfillment of the energy conservation law is verified along with the fulfillment of the boundary condition at the surface of the central grating element. © 2016, Pleiades Publishing, Ltd. Source


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2016

A new version of the modified method of discrete sources (MMDSs) is proposed for the solution of the 2D and 3D (vector) problems of diffraction of the point source field by a dielectric body. The case when the source is located at a small distance from a scatterer is considered. The method is tested for the example of the problem of diffraction of a point source field by an infinite dielectric cylinder and a dielectric sphere. It is shown that the discrepancy of the boundary conditions is substantially lower when the suggested variant of the MMDSs is used for various geometries of a scatterer. © 2016, Pleiades Publishing, Inc. Source


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2014

A new version of the modified auxiliary current method is proposed for the solution of the vector problem of diffraction by an impedance body of revolution. It is shown that the proposed approach makes it possible to develop efficient algorithms for the solution of this problem for bodies of revolution of various shapes, including scatterers with kinked boundaries. Numerical results for bodies of various geometries are reported, and the high accuracy of the results is demonstrated. © 2014 Pleiades Publishing, Inc. Source

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